AO System Design Effort (WBS 3.2 & 3.3)

Management

• Meeting minutes
• Team Meeting #9 Agenda AO and Laser System Design Kickoff, August 24, 2007
• Design phase staffing plan by WBS & groups
• Work scope planning sheet
• Management Plan including a meeting schedule * Agenda for the Nov 16 Meeting at UCSC: Face-to-face meeting on Opto-mechanical interfaces Meeting minutes
• Team meeting 12 agenda December 13, 2007

WBS 3.3 Laser Facility

• WSPS Planning Meeting, Sept 04, 2007
• WSPS Planning Meeting, Sept 11, 2007
• Draft of Laser Architecture
• WSPS Planning Meeting, Oct 01, 2007
• Responses to EC for WSPS
• K1 LGS Safety System Requirements
• K1 LGS Safety System Design

WBS 3.2.3.5 Wavefront Sensors

• Responses to science team's questions and concerns during Meeting #10

3.2 Deliverable Documents

• KAON 550 - System Configurations Spreadsheet (2/4/08). Three sheets are included: i) the system configurations, ii) a mapping of science drivers to system configurations and iii) a list of the required dichroics by switching device.

Design write-ups:

Use as inputs to the System Design Manual

• Keck NGAO Enclosure System Design (KAON563) -- JimBell
• Opto-Mechanical Design for the Keck NGAO Cascaded Relay (KAON 549) -- RenateKupke, ChrisLockwood? + other members of the AO Design team
• WFS CDR(.pdf) (KAON 551) updated 3/14/08 (MSWord) (PDF) -- ViswaVelur
• Acquisition system -- ChrisNeyman
• ADCs
  • Flowdown of ADC Requirements (.doc)-- DonaldGavel
  • Near IR ADC design -- BrianBauman
• Alignment, Calibration, and Diagnostic system -- ChrisNeyman
• Atmospheric profiler (draft) (KAON 552) -- Main.Chris Neyman
• Interim LOWFS and LGSWFS object selection mechanisms v2 (KAON 559) -- AnnaMoore
• Non-Real-Time controls (Erik Johansson)
  • Design Report -- version 2.2 (3/24/08),
  • System Block Diagram -- version 13 with science ops tools (Visio) (3/17/08),
  • Motion Control Spreadsheet -- version 2.1 (3/24/08)
• Real-Time Controls version 1 (1/29/08 a) -- version 2 (KAON 553) (1/29/08 b) -- version 3 (2/18/08) -- version 4 (2/27/08) -- MarcReinig?
  • A quick summary of the RTC design -- DonaldGavel
  • Summary_of_the_LAO_RTC_tomography_analysis.doc -- MarcReinig?

Specification Spreadsheets

Use as inputs to the Functional Requirements Database).
Note, these are links to the FunctionalRequirements page. Please update your edited versions there.

• AO Enclosure
• AO optomechanical - including field rotation, AO relay, switchyards, and support structure
• LGS Wavefront sensors +OSM
• NGS Wavefront sensors, LOWFS, TWFS + OSM
• Acquisition system
• Alignment, Calibration, and Diagnostic system
• real-time controls
• non-real-time controls

3.3 Deliverable Documents

Design write-ups

• Laser Enclosure System Design (KAON 561) -- DrewMedeiros?

Specification Spreadsheets

Technical Documents

LOWFS and LGS HOWFS Technical FoV (new)

• KAON_503_Mauna_Kea_Ridge_Turbulence_Models_v1.1.pdf: Revision to adopt 50th percentile seeing
• KAON_504_NGAO_TFoV_study_v1.1.pdf: Revision from 180" (202") to recommended 150" (174") TFoV's for LOWFS (LGS HOWFS)

Opto-Mechanical Design

Original design coming from the Architecture phase

• KeckNGAO_AORelayConcept_BB_Aug21,07-1.doc: Cascaded Relay optical design description
• 100_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_2-tier,_v2.ZMX: Zemax file
• 100_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_2-tier,_v2.SES: Zemax session file
• cascaded_relay_layout.doc: layout drawings - from Zemax

October 29, 2007

optical design update - increase field to 180 arcseconds for stars, 202 arcseconds for LGS

• Accomodating_a_180_arcsecond_NGS.doc: Accomodating a 180 arc second NGS
• 100_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_2-tier_180,_v2.ZMX: Zemax file
• 100_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_2-tier_180,_v2.SES: Zemax session file

November 8, 2007

Optical design with 7mm pitch woofer - (180 arcsec FOV, still 2-tier)

• 100_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_2-tier_180_7mmpitch,_v2.ZMX: Zemax file containing cascade relay design with 7mm-pitch woofer.

• 100_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_2-tier_180_7mmpitch,_v2.SES: Zemax session file containing cascade relay design with 7mm-pitch woofer.

November 20, 2007

Optical design for 150 arcsec field - (back to 5mm pitch, 2-tier, but smaller field (150 arcsec))

This is Brian's design with a little bigger K-mirror to accomodate 150 instead of 120 arcseconds.

• 100_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_2-tier_150_v2.ZMX: Zemax file containing 150 arcsecond cascaded relay design.

• 100_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_2-tier_150_v2.SES: Zemax session file corresponding to 150 arcsec cascaded relay design.

November 26, 2007

1-tier, 7mm pitch, 150 arcsecond field AO relay design

This is an exploration of the idea of putting it all on one-tier, with a "big" (7mm pitch) woofer DM.

NOTE These have an error in one of the path lengths (tweeter to 4th OAP)

• 100_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_1-tier_150_7mmpitch,_v2.ZMX: 1-tier, 7mm pitch design for AO relay

• 100_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_1-tier_150_7mmpitch,_v2.SES: 1-tier, 7mm pitch design for AO relay, Zemax session file

November 27, 2007, CORRECTED 1-tier, 7mm pitch, 150 arcsecond field AO relay design

This is an exploration of the idea of putting it all on one-tier, with a "big" (7mm pitch) woofer DM. Previous error is corrected.

• 100_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_1-tier_150_7mmpitch,_v2.ZMX: 100_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_1-tier_150_7mmpitch,_v2.ZMX

• 100_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_1-tier_150_7mmpitch,_v2.SES: 100_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_1-tier_150_7mmpitch,_v2.SES

• 100_mm_1_to_1_relay 25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_1-tier_150_7mmpitch,_v2.ZMX: Single-tier design

November 28, 2007

Peter's Zemax files: Additional ideas for the 1-tier layout

• Keck_AO_System_150_field.ZMX: This is the single-tier layout for the 150 arcsecond FOV design

• Keck_AO_System_150_field_opt_2.ZMX: Another option for the 150 arcsec single-tier layout

Peter's ppt summary of the optical designs: NGAO optical designs.ppt

Anna's doodle drawing adding enclosures and instruments to Peter's 1 tier design:

• PW-slide5-doodle.ppt: Enclosures added to Peter's 1-tier design

November 29, 2007

Here's the 1-tier, 140mm pupil layout with all corrector plates removed, and deformable mirrors flat.

• 140_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_1-tier_150_7mmpitch_nocor.ZMX: 140_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_1-tier_150_7mmpitch_nocor.ZMX
• 140_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_1-tier_150_7mmpitch_nocor.SES: 140_mm_1_to_1_relay_+_25-6_mm_1_to_3_relay,_f-45_out,_folded,_multiconfig,_1-tier_150_7mmpitch_nocor.SES

December 3, 2007

Peter's Zemax file: Additional ideas for the 1-tier layout with multiple configurations

• NGAO_1_tier_model.ZMX: This is the single-tier layout for the 150 arcsecond FOV design

Peter's ppt summary of this optical design: NGAO 1-tier optical relay.ppt

Anna's Zemax file: Combined Reni's 140mm 1-tier zemax with Peter's original 1-tier Keck AO system Changes made were OAP specifications, added LGS WFS dichroic, DM angle reduced to 7deg, OSM beamsplitter angle reduced to 10.5deg. This file is not complete! For use tomorrow.

• NGAO-1-tier-champion-dec2007.ZMX: This is the single-tier layout for the 150 arcsecond FOV design
• 1-tier-champion-dec2007.png: 1 slide layout of the above optical file with opto-mechanical components drawn
• 1-tier-champion-dec2007-platform.png: System shown relative to Keck Nasmyth platform
• 1-tier-champion-dec2007-specs.png: Basic specifications for the 1-tier champion layout
• 1-tier-champion-dec2007-beamsplitterbank.png: Version 0.2 of the OSM beamsplitter bank spec

Reni's 2-tier, folded 2nd relay design, based on Brian's original 2-tier design but with the 2nd relay folded rather than transmitted by a dichroic (this is Peter's idea from the 1-tier layout). Also a powerpoint slide showing the possible configuration of various NGAO components.

• Specifications_2-tier.doc: Basic specifications for 2-tier AO relay
• 2-tier_doodle_3.ppt: doodle of 2-tier concept, with folded 2nd relay
• KNGAO_2-tier_folded-2nd-relay_v2.ZMX: zemax file, 2-tier AO relay

December 6, 2007

Outline dimensions for the narrow field instruments.

• Instrument_Overviews_Visible_Imager.pdf: Visible imager outline dimensions
• Instrument_Overviews_OSIRIS.pdf: OSIRIS plan view outline dimensions with cart
• Instrument_Overviews_Near-IR_Imager.pdf: Near-IR imager outline dimensions

December 7, 2007

Peter's Zemax file: Another idea for the 1-tier layout with multiple configurations

• NGAO_1_tier_model.ZMX: This is the single-tier layout for the 150 arcsecond FOV design

Peter's ppt summary of this optical design: NGAO 1-tier optical relay.ppt

Jim Bell's draft Solid Works model: Single Tier.easm Top view.jpg Perspective view.jpg

December 11, 2007

• WFS_update.doc: 12/11/2007 WFS update
• Surface_count.doc: Updated (12/11/2007) Surface Count, 1 and 2-tier Cascaded Relay

Comparision of opto-mechanical designs

• Opto-mechanical_2-tier_1-tier_Comparison-1-6.doc: Pros and Cons of the two layout options: 1-tier vs 2-tier (Dec 12 update)

December 12, 2007

Anna's LGS schematics:

• LFSWFS-dec2007-pickoff-schem.jpg: 1 pick-off arm theta-theta
• LFSWFS-dec2007-closeasterism.jpg: 5 pick-off arms close asterism schematic
• ngaolgs-121207-pickoffsi002.pdf: Sketch of cross section through a theta-theta pick-off arm
• ngaolgs-121207-wfsunit003.pdf: Sketch of LGS WFS unit
• ngaolgs-121207-channel004.pdf: Sketch of LGS channel (1 of 9)
• ngaolgs-121207-pickoffop005.pdf: Sketch of rays through pick-off
• ngaolgs-121207-mechcount006.pdf: Tally of mechanisms and specs for LGS WFS unit

December 13, 2007

Chris L.'s drawings of 2-tier AO relay feeding instruments

• 0_2-tier_active_model12_13_iso1.pdf: Chris's drawing for 2-tier with instruments, perspective view.
• 0_2-tier_active_model12_13_iso2.pdf: Chris's drawing for 2-tier with instruments, perspective view.
• 0_2-tier_active_model12_13_top.pdf: Chris's drawing for 2-tier with instruments, top view.

January 7,2008

Here's an update of the 2-tier design, with an attempt at incorporating the interferometer steering mirrors.

• KNGAO_2-tier_folded-2nd-relay_v4.ZMX: Latest iteration of 2-tier layout (7 Jan 2008)
• Cascade_relay_all_configurations.ppt: Power point of all configuration layouts.
• Dichroic Spreadsheet: List of dichroics needed in the 2-tier, Cascaded AO relay

January 17, 2008

Current version of 2-tier cascaded relay, including telescope optics:

• KNGAO_2-tier_folded-2nd-relay_v4_wtelescope.ZMX: Cascaded-relay, 2-tier Zemax file with Keck primary/secondary included

Chris Lockwood's mechanical drawing of the AO relays and interfaces to instruments

• 0_2-tier_active_model.EASM: 3-D rendition of AO relay; 3d viewer software

Object Selection Mechanism

Link to LGS OSM Object Selection Mechanism (OSM) related files:

• NGAO LGS OSM

Link to LOWFS OSM Object Selection Mechanism (OSM) related files:

• NGAO LOWFS OSM

Present AO system design

• Keck_AO_System.ZMX: Keck_AO_System.ZMX - This is the present AO system design (ZEMAX file)

Reference on Pickoff Mechanisms

Paper: starbug-spie6273-69-06.pdf Haynes et. al., It’s Alive! – Performance and control of prototype Starbug actuators

Controls Architecture

• Real-Time Control Concepts and Interfaces

• Motion control specs v2, Excel

• System Block Diagram v6, Visio
• System Block Diagram v6, gif image
• Notes to accompany block diagram

Operational Tools

• NGS and LGS Acquisition Camera
• Calibration and Diagnostics Design

Design and Interface Collections:

• OptoMechanical Design
• Optical Design
• Left Nasmyth Platform Dimensions

Some initial drawings:

• CascadeRelay? _MechanicalLayout.jpg:
  

• CascadeRelay? _OpticalLayout_Bauman.jpg:
  

ICDs

• KNGAO_Controls_Interface.doc: Draft Controls ICD